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(No Model.) 3 SheetsSheet 1.

W. W. CLARK. SIGNAL LANTERN.

N0. 352,040'.- Patented Nov 2, 1886.

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(No Model.) 3 Sheets-Shet 2.

W. W. CLARK.

SIGNAL LANTERN.

Patented Nov. 2, 1886.

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SIGNAL LANTERN.

No. 352,040. Patented Nov. 2, I886.

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UNITED STATES PATENT OFFICE.

WILLIAM W. CLARK, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO JOHN C. BANKS AND ERWIN J. SMITH, BOTH OF SAMEPLAOE.

SIGNAL-LANTERN.

SPECIFICATION forming part of Letters Patent No. 352,040, dated November 2, 1886.

I Application filed September 14, 1885. Serial No. 177,027. (No model.)

To (ZZZ whom, it may concern:

Be it known that I, WILLIAM WILLIS CLARK, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in SignalZLanterns, of which I do declare the following to beafull, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

lVIy present invention has relation to the improvement of that class of signal-lanterns com monly carried by hand,and especially adapted for the use of train-men,station-agents, and others upon railroad-lines,and in which provision is made whereby the lantern may show either a white or a colored light, according to .the sig nal to be conveyed or the usein which the lantern is employed.

Figure'l is'a view in central vertical section of a lantern embodyingrny invention. Fig. 2 is a view in orosssection on line i; o of Fig. 1. Fig. 3 isaview in crosssection on line to w of Fig. 1. Fig. 4 is a view in central vertical section of a construction of lantern embodying one form of.my invention. Fig. 5 is a view in cross-section on line a: w of Fig. 4. Fig. 6 is a view in cross-section on line y y of Fig. 4. Figs. 7 and 8 are respectively views in central vertical section of a lantern made in accordance with my invention. Fig.

' 9 is a view in cross-section on line z z of Fig.

r. Fig. 10 is a viewin central vertical section (parts being shown in elevation) of a lantern made in accordance with my invention and having several colored globes. Fig. 1l is a view in cross section'on line it of Fig. 10.

The main body of the lantern consists of the usual base, A, upon which rests the globe A,

preferably of white glass, and the guard-wires A, which encompass the globe. To the upper ends of thesew-ires is connected the top rim,B,

the dependent angular portion 2) of which bears againstthe outer faceof the globe. Into this rim B enter the catch-screws B, which pass through the bottom rim, 0, that is soldered to the lower-portion of the shield-casing O, and these screws serve to securely hold the shield-casing in position upon the body of the lantern in such manner that it can be convenglass.

iently withdrawn therefrom when the glass globe is required to be replaced or cleaned. To the top of the casing O is suitably connected the dome D, and beneath this dome is held the perforated top plate, E, the purpose of which will presently appear. At the center of the dome D and they perforated plate E is fixed the tube F, through which passes the plain portion 9 of the operating-screw G, that is. held in place by means of the flange g and pin 9 and the lower portion, 9 of this screw is threaded, as shown, and enters the correspondingly threaded portion of the guideframe H. One of the bars of this guide-frame is perforated, as clearly shown in Figs. 1 and 2, and through these perforations pass the guide-rods I, the upper ends of which are securely fixed in the perforated plate E. Ihe arms of the guide-frame H are provided at their outer ends with the rim h, from which depend the bars h, that carry at their lower ends the supporting-rim H, upon which rests the supplemental globe K, of suitable colored Set-screws is, entering perforations in the rim h, serve to more securely hold thi globe within its supporting-frame. e

From the foregoing construction it will be seen that when a white light is to be shown by the lantern the parts will occupy the relative positions shown in Fig. 1, the supplemental colored globe being at such time within the shield-casing O, and thereby completely bid den. It, now, a colored light is to be displayed,

the operating-screw G will be turned in such manner as to cause the supplemental globe to descend until it completely encircles the lamp. In this operation of moving the supplemental globe theguide-rods I serve to hold it firmly throughout its movement. \Vhenever a globe is broken or requires to be cleaned the screws B will be withdrawinso as to permit the shieldcasingto be separated from the main body of the lantern, and the supplemental globe can be conveniently removed by withdrawing the set-screws 70 from the rim h of the guide-frame.

Various devices may be employed for operatin g the supplemental globe of my improved lantern- -such, for example, as those illustrated in the modifications shown in Figs. 4 to 10.

In the modification illustrated by Figs. 4, 5,

and 6 the guide-frame of the supplemental globe is connected to an extensible frame, L, consisting of bars arranged on the lazy-tongs principle, the ends of the lower bars being c011- nectcd to the pin Z through the long slot Z of the guide-frame, and the upper end being pivotally connected to the pin Z within a long slot formed in the top of the dome D. In this construction the perforated plate E is provided with a long slot, 0, through which the bars will pass. At the upper ends of the bars L is pivotally fixed a catch-bar, L, having notches Z therein, that engage with the pin Z and serve to hold the bars L in either extended or withdrawn position, and a spring, L", bears upon the bar L in such manner as to hold the same upon the pin. From the foregoing construction it will be seen that by forcing the upper ends of the bars L apart, as shown in Fig. 4, the guide-frame and the supplemental globe will be brought to its elevated position, and

.will be there held by means of a locking-bar,

L. If, now, this locking-bar be elevated and the free ends of the bars L be pressed together, the guide-frame and the supplemental globe will be forced downward in such manner as to cause the globe to encircle the lamp and display a colored light.

In the modified construction shown by Figs. 7, 8, and 9 the bottom rim, H, that supports the supplemental globe, is connected to the top frame or rim, M, by means of the bars I, and through this rim M pass the set-screws O, the inner ends of which preferably project a sufficient distance to hold the supplemental globe securely in position. In this construction long slots 0 are formed-in the walls of the casing O, at opposite sides thereof, and through these slots move the screws 0 when the supplemental globe is raised or lowered. At the tops ot'the slots 0 are preferably formed the transverse slots 0 into which the screws 0 will be turned, in order to retain the supplemental globe in its elevated position, and'at the bottoms of these slots will be formed the transverse slots cflwhich will serve to hold the screws 0 when the supplemental globe has been depressed to encircle the lamp. From this construction it will be seen that when it is desired to display a colored light it-is only necessary to move the screws 0 down the slots 0' until the supplemental globe completely encircles the lamp.

In Figs. 10 and 11 I have illustrated a form of lantern having two supplemental globes, that may be of any desired color-for example, red and green. In this construction the inner globe will be sustained and operated as shown in Fig. 1, and the outer globe which encircles it will be sustained and operated as in the modified construction shown in Figs. 7 and 8. These supplemental globes when not in use will each be hidden and protected by the shield-casing O, and either may be brought into position to encircle the lamp and display the desired color by operating either the long screw G or the side screws, 0, in the manner heretofore described. The lantern will be provided with a suitable handle, B, when necessary, so that it may be conveniently carried.

It will be readily understood. that the details of construction above set outmay be varied within wide limits without departing from the spirit of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

.1. In a signal lantern, the combination, wit-h the main body having a fixed globe, of a shield-casing mounted above said main body, a supplemental globe movably sustained within said shield-casing, and suitable catches for detachably connecting said shield-casing to the main body, whereby said shield-casing can be removed from the main body to allow access to the globes, substantially as described.

2. In a signal -lantern, the combination, with the main body, of the top rim, D, the shield-rim c, the screws or catches B, the shield-casing O, and the globe K within said shield'casing, substantially as described.

3. In a signal -lantern, the combination, with the main body, ofa shield-casing, a supplemental globe movably sustained within said shield-casing, a support for said supplemental globe, a screw-threaded bar connected to said support, and a long screw for raising and lowering said globe, substantially as described.

4. In a signal lantern, the combination, with the main body, of a shield-casing, a supplemental globe within said casing, suitable supports for said globe, a screw for raising and lowering said globe, and guide-rods, substantially as described.

5. In a signal lantern, the combination, with the main body and the dome or top, ofa shieldcasing connected to the main body and the dome, aseries of globes movably sustained within said shield-casing, and a long screw for operating the inner globe, extending through the top of the dome, substantially as described.

6. In a signal -lantern, the combination, with the main body and the dome or top, of a slotted shield-casing connected to the main body and the dome, a series of globes movably sustained within said shield-casing, a long screw for operating the inner globe,extending through the top of the dome, and screws or stops extending from the supports ot'the outer globe through the slots of the shield-casing, substantially as described.

\VILLIAM IV. CLARK.

\Vitnesses:

G120. P. FISHER, J r., JAMES H. PEIROE. 

